Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

140
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
140
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

219
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
219

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Impact of air pollution exposure on chronic kidney disease and type 2 diabetes: A FIDELITY analysis.

American journal of preventive cardiology·2026
Same author

Research opportunities to advance cardiovascular health through a planetary health lens.

American journal of preventive cardiology·2026
Same author

Neighborhood green space visits and coronary heart disease: Evidence from mobility data across nine U.S. metropolitan cities.

American journal of preventive cardiology·2026
Same author

Air pollution and adverse birth outcomes: a narrative review of epidemiological and mechanistic findings.

Journal of environmental health science & engineering·2026
Same author

Incremental prognostic value of coronary artery calcium progression within a large community-benefit calcium score registry.

American journal of preventive cardiology·2026
Same author

Disaggregating Asian cardiovascular phenotypes through cardiac CT adipose tissue imaging.

American journal of preventive cardiology·2026
Same journal

Post-market safety profile of the CardioMEMS HF System: A MAUDE disproportionality and network analysis.

Cardiovascular revascularization medicine : including molecular interventions·2026
Same journal

Editorial: That's why it's called "hardening of the arteries". The challenge of PCI in calcified coronary arteries.

Cardiovascular revascularization medicine : including molecular interventions·2026
Same journal

Incidence and prognostic value of electrocardiographic changes in patients with myocardial injury after elective PCI.

Cardiovascular revascularization medicine : including molecular interventions·2026
Same journal

Eyeballing versus comprehensive geriatric frailty assessment and outcomes after transcatheter aortic valve replacement: Insights from a large cohort.

Cardiovascular revascularization medicine : including molecular interventions·2026
Same journal

An assessment of the accuracy of a novel peripheral artery disease scoring system to identify obstructive coronary artery disease in patients with severe aortic stenosis.

Cardiovascular revascularization medicine : including molecular interventions·2026
Same journal

Lipoprotein(a) testing in invasive coronary angiography: Screening yield and anatomic coronary disease burden.

Cardiovascular revascularization medicine : including molecular interventions·2026
See all related articles

Related Experiment Video

Updated: Nov 19, 2025

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

535

A New WATCHMAN Sizing Algorithm Utilizing Cardiac CTA.

Fahd Nadeem1, Chinedu Igwe2, Stephen Stoycos3

  • 1Division of Cardiology, Department of Medicine, Lifespan Cardiovascular Institute and Brown University, Providence, RI, United States of America.

Cardiovascular Revascularization Medicine : Including Molecular Interventions
|February 2, 2021
PubMed
Summary
This summary is machine-generated.

A new cardiac computed tomography (CTA) algorithm accurately sizes the WATCHMAN left atrial appendage (LAA) occlusion device. This method improves procedural success and reduces device use in patients with non-valvular atrial fibrillation.

Keywords:
Device sizingLeft atrial appendage closureWATCHMAN device

More Related Videos

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

84.1K
High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
11:09

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

Published on: December 16, 2022

4.1K

Related Experiment Videos

Last Updated: Nov 19, 2025

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

535
The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

84.1K
High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
11:09

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

Published on: December 16, 2022

4.1K

Area of Science:

  • Cardiology
  • Medical Imaging
  • Interventional Cardiology

Background:

  • The WATCHMAN device offers an alternative to anticoagulation for non-valvular atrial fibrillation.
  • Cardiac computed tomography (CTA) is used for device sizing, but lacks a standardized algorithm.
  • This study introduces and evaluates a novel CTA-based sizing algorithm for the WATCHMAN device.

Purpose of the Study:

  • To assess the accuracy of a new cardiac CTA LAA ostium area-based sizing algorithm for the WATCHMAN device.
  • To evaluate the clinical outcomes associated with using this CTA sizing algorithm.

Main Methods:

  • Prospective, single-center study of patients undergoing CTA and WATCHMAN implantation (March 2017 - October 2019).
  • Analysis of baseline characteristics, procedural data, and clinical outcomes.
  • Application of a novel CTA LAA ostium area-based sizing algorithm.

Main Results:

  • The algorithm accurately predicted the final WATCHMAN device size in 95.6% of 115 patients.
  • High procedure success rate (99.1%) with a mean of 1.15 devices used per case.
  • Patients were older (mean 76.5 years) with a high CHADSVASC score (4.68), often indicated due to gastrointestinal bleeding (57.4%).

Conclusions:

  • The cardiac CTA LAA ostium area-based sizing algorithm is highly accurate for WATCHMAN device selection.
  • This approach leads to excellent clinical outcomes and potentially lower device utilization.
  • The algorithm provides a reliable method for pre-procedural planning in LAA occlusion procedures.